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The identification of a candidate gene for neurofibromatosis 2 (NF2), a dominantly inherited disorder characterized by the occurrence of bilateral schwannomas and other central nervous system tumors such as multiple meningiomas, is reported. Previous studies have suggested the inactivation of a tumor suppressor gene in choromosome 22q12 as a potential cause of the disorder. The candidate NF2 gene encodes a 587-amino acid protein which is related to the membrane-organizing extension spike protein-ezrin-radixin family of proteins that link cytoskeletal proteins with proteins in the cell membrane.

Genetic testing in children, when there is a question of whether or not there is a clear medical benefit that will accrue to the child, is a controversial topic within the health care community. A convenience sample of 10 parents from nine families who had made the decision whether or not to test their children for the neurofibromatosis 2 gene mutation was asked in interviews to describe why they made their choice about presymptomatic testing for this late-onset disease. Findings from a narrative analysis revealed how the nine parents who tested or intended to test their young children saw the decision as a pathway to knowledge that would help the family unit. All parents interviewed noted that their decision was informed by their health team and was not difficult to make. Implications of these findings for bioethical analysis are presented. [Copyright &y& Elsevier]